The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2012
Filed:
Nov. 02, 2004
Takashi Hasunuma, Narita, JP;
Takashi Sato, Kashiwa, JP;
Takashi Hasunuma, Narita, JP;
Takashi Sato, Kashiwa, JP;
Tyco Electronics Japan G.K., Kawasaki-shi, JP;
Abstract
The present invention provides an overheat protection device which is capable of effectively preventing a secondary battery from overheating. In the overheat protection device (), a variable resistive element(s) () of which resistance varies depending on a temperature is located on and thermally combined with a certain position(s) of an electrical system (), and a switching element () for controlling a current depending on an applied voltage thereto is arranged so as to control the current flowing through the electrical system (). When the certain position of the electrical system () comes to be under a high temperature condition, the variable resistive element () interrupts the current flowing through the electrical system () by changing the applied voltage to the switching element ().